N
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
328
7 IR
Examples (v ~ in cm -1 )
O
1136
935
917
O
1225
1218
1211
1003
O
1250
1040
O
O
1188
1138
1111
1046
O
O
1172
1132
1077
1057
1038
7.8.3 Epoxides
Typical Ranges (v ~ in cm -1 )
Assignment
Range
Comments
C–H st
3050–2990
Frequency higher than normally found in
alkanes
ring st as
1280–1230
Variable intensity
ring st sy
950–815
Variable intensity
ring δ
880–750
Variable intensity
Examples (v ~ in cm -1 )
O
1280
870
O
1230 sy
885 as
845 δ
O
1260 sy
890 as
780 δ
%T
400
800
1200
1600
2000
2800
3600
ring st sy
ring st as
C–H st
ring δ
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
328
7 IR
Examples (v ~ in cm -1 )
O
1136
935
917
O
1225
1218
1211
1003
O
1250
1040
O
O
1188
1138
1111
1046
O
O
1172
1132
1077
1057
1038
7.8.3 Epoxides
Typical Ranges (v ~ in cm -1 )
Assignment
Range
Comments
C–H st
3050–2990
Frequency higher than normally found in
alkanes
ring st as
1280–1230
Variable intensity
ring st sy
950–815
Variable intensity
ring δ
880–750
Variable intensity
Examples (v ~ in cm -1 )
O
1280
870
O
1230 sy
885 as
845 δ
O
1260 sy
890 as
780 δ
%T
400
800
1200
1600
2000
2800
3600
ring st sy
ring st as
C–H st
ring δ